CN108585432A - Integrated spiral shell presses sludge dewatering equipment - Google Patents
Integrated spiral shell presses sludge dewatering equipment Download PDFInfo
- Publication number
- CN108585432A CN108585432A CN201810729449.XA CN201810729449A CN108585432A CN 108585432 A CN108585432 A CN 108585432A CN 201810729449 A CN201810729449 A CN 201810729449A CN 108585432 A CN108585432 A CN 108585432A
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- Prior art keywords
- section
- flocculation
- filter cylinder
- gravity
- spiral shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 41
- 238000005189 flocculation Methods 0.000 claims abstract description 75
- 230000016615 flocculation Effects 0.000 claims abstract description 75
- 230000005484 gravity Effects 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000018044 dehydration Effects 0.000 claims abstract description 27
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000003311 flocculating effect Effects 0.000 claims description 5
- 241000417436 Arcotheres Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
Integrated spiral shell presses sludge dewatering equipment,Belong to sludge treatment field,Including central principal axis,The filter cylinder of central principal axis periphery,By filter cylinder and several affixed connecting rods of central principal axis,Filter cylinder includes rolling stand,It is coated on the cylinder face on rolling stand,The filter cylinder is divided into flocculation section,Gravity dehydration section and gravity concentration section,Flocculation section,Gravity dehydration section is the horizontal segment of filter cylinder,Gravity concentration section is the conical section of filter cylinder,The cylinder face of the flocculation section is sealing panel,The cylinder face of gravity concentration section and flocculation section is mesh panel,The inner surface of flocculation section is provided with several flocculation sinks,Flocculation sink is formed around center of circle array,Water inlet pipe is stretched into from flocculation section,Water outlet is tangentially-arranged with filter cylinder,Gravity concentration section end is connected with disk filter cylinder,Central axis segment in disk filter cylinder is the conical section that diameter becomes larger,Taper section surface is provided with screw press blade.Floor space is small, it can be achieved that gravity dehydration, mixed flocculation, helical feed and pressing integrated.
Description
Technical field
The present invention relates to sludge treatment field more particularly to drum mud dewaterers.
Background technology
Chinese patent CN207270843U discloses a kind of belt pressure filter for sludge dewatering, belongs to sludge disposal technology neck
Domain, including mainframe and slave frame, it is characterized in that：The outside of the mainframe is equipped with the first strainer, the outside of the slave frame
Equipped with the second strainer, it is equipped with several deflector rolls on the mainframe and slave frame, is set between first strainer and the second strainer
It includes mounting plate, movable platen, pressure bowl and hydraulic cylinder to have pressing device and several high pressure dehydration rolls, the pressing device
One, the hydraulic cylinder one is fixedly connected on the lower part of slave frame, and the output end of the hydraulic cylinder one is fixedly connected with mounting plate, institute
The lower part that movable platen is mounted on mounting plate is stated, the pressure bowl is mounted on mainframe.The present invention can make full use of equipment
Occupied space, exponentially expand gravity dewatering zone, more water made to be removed in gravity dewatering zone, be conducive to improve squeezing
The water removal effect of roller group improves the water removal effect of sludge.
Also disclose that pressure bowl carries out gravity dehydration in its technical solution, but its flocculating effect is poor and energy consumption is higher,
Have much room for improvement.
For another example：Chinese patent CN201358206Y discloses a kind of integration of sludge concentrating and dewatering equipment, including sludge mixes
It closes and charging gear, rotation promotes gravity dehydration device, filtering pressing device and cake outlet；The sludge mixing and feed dress
It sets, including sludge agitation pond and sludge carrier pipe is set in rack, sludge agitation pond is equipped with mud inlet, feeding opening, sludge
Stirring blade motor-driven is equipped in stirring pool；It is connected above the sludge carrier pipe and sludge agitation pond；It is described
Rotation promotes gravity dehydration device, including screenbowl, drainage pipeline and lower curtate catch basin, and screenbowl, which is connected to the motor, to be connect；
The filtering pressing device, including upper strainer, lower filter belt and several dehydration rollers, upper and lower strainer are controlled by motor, between formed
One wedge area；Roller is S-shaped is distributed between strainer and lower filter belt for dehydration.The present invention is easily operated, and performance is stablized, from
Dynamicization degree is high, is the ideal equipment of sludge dewatering treatment.
It is also that screenbowl only plays the role of gravity dehydration, and flocculation needs in addition setting sludge stirring machine,
And pure to be driven for motor, energy consumption is higher, still has much room for improvement.
Invention content
It is small, it can be achieved that gravity dehydration, mixing wadding that in view of the deficiencies of the prior art, the present invention provides a kind of floor spaces
The integrated spiral shell of solidifying, helical feed and pressing integrated presses sludge dewatering equipment.
Purpose to realize the present invention provides following technical scheme：Integrated spiral shell presses sludge dewatering equipment, including center master
Axis, the filter cylinder of central principal axis periphery, by filter cylinder and several affixed connecting rods of central principal axis, it is characterised in that filter cylinder includes rolling
Tube stent, the cylinder face being coated on rolling stand, the filter cylinder are divided into flocculation section, gravity dehydration section and gravity concentration
Section, flocculation section, the horizontal segment that gravity dehydration section is filter cylinder, gravity concentration section is the conical section of filter cylinder, the cylinder face of the flocculation section
For sealing panel, the cylinder face of gravity concentration section and flocculation section is mesh panel, and the inner surface for section of flocculating is provided with several flocculations
Sink, flocculation sink are formed around center of circle array, and water inlet pipe is stretched into from flocculation section, is discharged, gravity concentration tangentially-arranged with filter cylinder
Section end is connected with disk filter cylinder, and the central axis segment in disk filter cylinder is the conical section that diameter becomes larger, taper segment table
Face is provided with screw press blade.
Preferably, the surface for stretching out the central principal axis part of disk filter cylinder is provided with back pressure plate.
Preferably, flocculation sink is strip groove body, groove body section is arc-shaped, and arc-shaped side is provided with prolongs upwards
The water blocking stretched prolongs side.The flocculation incorporation time in sink can effectively be extended by such setting.
Preferably, the angle that water blocking prolongs between the peak on side and the peak horizontal plane of the arc-shaped other side is 45
Degree.
It is additionally provided with flocculation helical blade preferably, being located on rear side of flocculation sink in flocculation section, flocculation helical blade and rolling
Tube stent is affixed.
It is too short in the 1/4 circle generation flocculation time of drum rotation speed Gao Shida 5r/min, only roller, in sink rear class, number is set
The continuous flocculation helical blade of circle, by flocculating, helical blade is flocculated again, extends flocculation incorporation time.
Preferably, flocculation helical blade is the continuous blade of low pitch angle of 1.5 circles, pitch P=200.Pass through such setting
Increase mixing efficiency.
Preferably, gravity dehydration section and gravity concentration section inner surface are provided with the conveyor screw blade of reducing, spiral
Blade is affixed with rolling stand.It is conveyed and is squeezed by the conveyor screw blade of reducing, substantially increase gravity dehydration effect
Rate and Milling Efficiencty.
Preferably, connecting rod is vertical with central principal axis affixed.
Advantageous effect of the present invention：The present invention fills the gravity of water as driving one of condensing cylinders using flocculation sink
The power of exceptionally power, this part is lasting and opposing roller generates and rotates additional torque, the roller auxiliary drive motor made
Reduce power.The reduction of this power with roller diameter is bigger, the torque of the bigger generation of sink volume is bigger, and center
（Or periphery）Driving motor can be used as auxiliary power.Driving motor can be also saved when the torque that waterpower generates is sufficiently large, only
Roller is set to generate rotation by waterpower.The prime pretreatment that this equipment can be used as sewage disposal uses, and intercepts, retention, is dehydrated, is defeated
Send the slag object in sewage.
Description of the drawings
Fig. 1 is the front view of the embodiment of the present invention 1.
Fig. 2 is the left view of Fig. 1.
The structural schematic diagram of main shaft centered on Fig. 3.
Fig. 4 is the structural schematic diagram of filter cylinder in Fig. 1.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the schematic diagram in the cylinder face of Fig. 4.
Fig. 7 is the structural schematic diagram of another filter cylinder of embodiment 2.
Fig. 8 is the left view of Fig. 7.
Fig. 9 is the front view of sink.
Figure 10 is the left view of Fig. 9.
Figure 11 is the partial enlarged view of T in Fig. 4.
Specific implementation mode
Embodiment 1：Integrated spiral shell presses sludge dewatering equipment, including central principal axis 1,1 periphery of central principal axis filter cylinder 2, will filter
Cylinder 2 and several affixed connecting rods 3 of central principal axis 1,3 one end of connecting rod is vertical with central principal axis 1 affixed, the other end and filter cylinder
2 rolling stand 2.1 connects, and 2.1 surface of rolling stand is coated with a face 2.2, and it is de- that filter cylinder 2 is divided into flocculation section 2A, gravity
Water section 2B and gravity concentration section 2C, flocculation section 2A, the horizontal segment that gravity dehydration section 2B is filter cylinder 2, gravity concentration section 2C are filter
The cylinder face 2.2 of the conical section of cylinder 2, the flocculation section 2A is sealing panel 2.2.1, the cylinder face of gravity concentration section 2B and flocculation section 2A
2.2 be mesh panel 2.2.2, and the inner surface of flocculation section 2A is provided with 16 flocculation sinks 4, and flocculation sink 4 surrounds center of circle array
It forms, flocculation sink 4 is strip groove body, and groove body section is arc-shaped, and arc-shaped side is provided with the water blocking upwardly extended and prolongs
Side 4.1.It is 45 degree that water blocking, which prolongs the angle between the peak on side 4.1 and the peak horizontal plane of the arc-shaped other side 4.2,.Upwards
The water blocking of extension prolongs side 4.1 and is set to outside, close to 2 barrel side of filter cylinder.
Water inlet pipe 5 is stretched into from flocculation section 2A, and water outlet is tangentially-arranged with filter cylinder 2, and the ends gravity concentration section 2C are connected with disk
Filter cylinder 14,1 section of conical section 17 become larger for diameter of central principal axis in disk filter cylinder 14, the setting of 17 surface of conical section
There is screw press blade 15.The surface for stretching out 1 part of central principal axis of disk filter cylinder 14 is provided with back pressure plate 16.
Gravity dehydration section 2B and gravity concentration section 2C inner surfaces are provided with the conveyor screw blade 7 of reducing, helical blade 7
It is affixed with rolling stand 2.1.
Embodiment 2：With reference to embodiment 1,4 rear side of flocculation sink, which is located in flocculation section 2A, is additionally provided with flocculation helical blade 8, wadding
Solidifying helical blade 8 and rolling stand 2.1 are affixed.The continuous blades of low pitch angle that the helical blade 8 that flocculates encloses for 1.5, pitch P=
200。
1 both ends of central principal axis are set on bearing block 9 in above-described embodiment, one end connection driving motor 13, on water inlet pipe 5
It is provided with inlet valve 10,2 top of filter cylinder is provided with flushing pipe 11 along barrel length direction, under the port of gravity concentration section 2B
Slag object vehicle 12 can be set.
Include below step when specifically being implemented：
First step sludge flocculation：
1）The setting of general parameters.
Roller is set to rotate with the speed of 3r/min, diameter of phi 1.2m outer cylinder linear speed Π * d*n calculate to obtain 0.19m/s,
That is movement speed of the sludge in filter cylinder.
Setting flocculation sink effective length L=1000mm, flocculation sink diameter 150mm add water to highest liquid such as figure section
Half of the volume V=Π * r2*L/2 in position calculates to obtain 0.0081m3/.
It sets flocculation water slot number amount and is distributed in cylinder inner wall as 16, calculate 3 × 16 × 0.0081=0.39m3/ of inflow
min.That is the actual treatment amount 23m3/h of roller.
2）The calculating of flocculation time.
Flocculate sink flocculation time：Setting flocculation sink relative level central shaft turns at 5 ° of angles, flocculation sink from location A
B location is moved, for incorporation time of flocculating, is rotated with the speed of 3r/min, i.e. 20s/r.A points to B points rotation time * * 20=
The effective flocculation time 3.75s of 3.75s, i.e. sludge.It is 20=1.25s of liquid time * * from B points to C points.From A points to the wadding of C points
Coagulate * 20=5s that the liquid time is roller.
Spiral flocculation time：The low pitch angle of 1.5 circle of setting is continuous in closed cylinder in flocculation sink rear class processing
Blade pitch P=200, the purpose is to increase flocculation time.It is directly entered the section after flocculation sink water outlet, continues the mixing of muddy water
Flocculation.In setup parameter：Rotating speed 3r/min, i.e. 20s/r, spiral number=1.5P.Because of 1P=1r=20s, rotated in roller
The middle most short maximum duration of spiral flocculation time is 0.5 × 20=10s and 1.5 × 20=30s respectively.
Conclusion：Sink flocculation+spiral flocculation, total muddy water flocculation time：Between 5+10=15s and 5+30=35s.Meet work
Skill requirement.（Being turned down when drum rotation speed can be by the spiral number of turns of increase and decrease flocculation section, to meet the flocculation time to sludge
It is required that）.
3）Into the calculating of Hydraulic Moment and power.
The volume 0.0081m3 of known single sink, by the density 1t/m3 of water, the gravity of generation is 8.1kgf；By 1kgf=
9.8N, i.e. ,=79.38N.
By torque formula：T=FA.Known gravity F=79.38N, arm of force A=0.52m,.
T=FA=79.38*0.52=41.28N.m；T1=F1A=Fcos22*0.52=38.27N.m；
T2=F2A=F cos45*0.52=29.17N.m； T3=F3A=F cos68*0.52=29.76N.m；
Resultant couple Tz=T+T1+T2+T3=124.2 N.m。
By horse-power formula P=TzN/9550, Tz=124.2 N.m N=3r/min.Calculate to obtain P=39W.
Original 0.5 ~ 1 cubic metre of flocculation cylinder power of agitator 0.75kw individually set up can cancel.
Second step gravity dehydration：
Spiral in closed cylinder is flocculated liquid, is pushed to screen tube, screen tube by continuous variable-pitch auger blade
Rack is fixedly connected with central shaft for steel pipe, and machine frame inside is welded with helical blade（It is left-handed）, the circle of spiral number 2.5, pitch P=
300.Blade exterior is enclosed with the stainless steel cloth of 20 mesh, and steel wire surrounding is fixed on the rack by pressing plate, steel wire diameter Φ
0.4mm, screen distance reach 0.87 × 0.87mm.Mud, water after flocculation are clearly separated, and with the rotation of helical blade, are deposited on filter
The muddy water of net cylinder bottom is pushed with 0.19m/s linear velocities by continuous stir toward rear class, and water therein is continuous due to gravity
A large amount of abjection, completes gravity dehydration, and moisture content is reduced to 90% or so.
Third walks gravity concentration：
Sludge pushes to conical screen cylinder by continuous helical blade, since conical screen cylinder is to the castering action of sludge, makes dirt
Mud is further concentrated dehydration moisture content and is reduced to 86% or so.
4th step extrusion dehydration：
By the helical blade being separately positioned on roller internal helical blades and central rotating shaft, sludge is transitioned into rear class disc-type
Extrusion dehydration.Gap of the extrusion dehydration principle between dynamic and static disk ring, is arranged the helical blade carried in horn-like mandrel
Sludge condensation is squeezed, the filter gap being arranged between disk ring is utilized：Generally 0.2-0.5mm constantly squeezes sludge
Water outlet, and sludge is trapped in the cavity of dynamic and static disk composition, and outlet, the back pressure at rear portion are constantly delivered to by helical axis
Plate can further increase the mud extraction pressure in filter cylinder cavity, and sludge dewatering moisture content is made to be down to 80% or so.
Entire filter cylinder top is provided with flush pipe, flushing filtering net face and disk ring, and the hole that it is dehydrated is made not to be blocked, dirty
The lasting progress of mud dehydration energy.
Claims (8)
1. integrated spiral shell presses sludge dewatering equipment, including the filter cylinder of central principal axis, central principal axis periphery, filter cylinder and central principal axis consolidated
Several connecting rods connect, it is characterised in that filter cylinder includes rolling stand, the cylinder face that is coated on rolling stand, the filter cylinder according to
Secondary to be divided into flocculation section, gravity dehydration section and gravity concentration section, flocculation section, the horizontal segment that gravity dehydration section is filter cylinder, gravity is dense
Contracting section be filter cylinder conical section, it is described flocculation section cylinder face be sealing panel, gravity concentration section and flocculation section cylinder face be mesh
Panel, the inner surface of section of flocculating are provided with several flocculation sinks, and flocculation sink is formed around center of circle array, and water inlet pipe is from flocculation
Section stretches into, and water outlet is tangentially-arranged with filter cylinder, and gravity concentration section end is connected with disk filter cylinder, the central shaft being located in disk filter cylinder
Section is the conical section that diameter becomes larger, and taper section surface is provided with screw press blade.
2. integration spiral shell according to claim 1 presses sludge dewatering equipment, it is characterised in that stretch out the center master of disk filter cylinder
The surface of shaft portion is provided with back pressure plate.
3. integration spiral shell according to claim 1 presses sludge dewatering equipment, it is characterised in that flocculation sink is strip slot
Body, groove body section are arc-shaped, and arc-shaped side is provided with the water blocking upwardly extended and prolongs side.
4. integration spiral shell according to claim 3 presses sludge dewatering equipment, it is characterised in that water blocking prolongs the peak and circle on side
Angle between the peak horizontal plane of the arc other side is 45 degree.
5. integration spiral shell according to claim 1 presses sludge dewatering equipment, it is characterised in that be located at flocculation on rear side of flocculation sink
Flocculation helical blade is additionally provided in section, flocculation helical blade and rolling stand are affixed.
6. integration spiral shell according to claim 5 presses sludge dewatering equipment, it is characterised in that flocculation helical blade is 1.5 circles
The continuous blade of low pitch angle, pitch P=200.
7. integration spiral shell according to claim 1 presses sludge dewatering equipment, it is characterised in that gravity dehydration section and gravity are dense
Contracting section inner surface is provided with the conveyor screw blade of reducing, and helical blade is affixed with rolling stand.
8. integration spiral shell according to claim 1 presses sludge dewatering equipment, it is characterised in that connecting rod is vertical with central principal axis
It is affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810729449.XA CN108585432B (en) | 2018-07-05 | 2018-07-05 | Integrated screw press sludge dewatering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810729449.XA CN108585432B (en) | 2018-07-05 | 2018-07-05 | Integrated screw press sludge dewatering machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108585432A true CN108585432A (en) | 2018-09-28 |
| CN108585432B CN108585432B (en) | 2024-06-04 |
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ID=63635352
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810729449.XA Active CN108585432B (en) | 2018-07-05 | 2018-07-05 | Integrated screw press sludge dewatering machine |
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| Country | Link |
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| CN (1) | CN108585432B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109896718A (en) * | 2019-03-12 | 2019-06-18 | 合肥工业大学 | A kind of sludge combined dryer |
| CN110227610A (en) * | 2019-06-13 | 2019-09-13 | 浙江工业大学 | A kind of decanter centrifuge feed preparation unit |
| CN111496179A (en) * | 2020-04-14 | 2020-08-07 | 蓝仙松 | Waste molding sand cleaning and concentrating dehydration equipment |
| CN113082826A (en) * | 2021-05-06 | 2021-07-09 | 陈波 | Sludge discharge equipment with sludge compression function for sewage treatment |
| CN116022987A (en) * | 2023-03-29 | 2023-04-28 | 河北环境工程学院 | Full-automatic sludge high-efficiency treatment device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109896718A (en) * | 2019-03-12 | 2019-06-18 | 合肥工业大学 | A kind of sludge combined dryer |
| CN109896718B (en) * | 2019-03-12 | 2022-03-01 | 合肥工业大学 | Sludge combined drying device |
| CN110227610A (en) * | 2019-06-13 | 2019-09-13 | 浙江工业大学 | A kind of decanter centrifuge feed preparation unit |
| CN110227610B (en) * | 2019-06-13 | 2024-05-07 | 浙江工业大学 | Feed pretreatment device for horizontal decanter centrifuge |
| CN111496179A (en) * | 2020-04-14 | 2020-08-07 | 蓝仙松 | Waste molding sand cleaning and concentrating dehydration equipment |
| CN113082826A (en) * | 2021-05-06 | 2021-07-09 | 陈波 | Sludge discharge equipment with sludge compression function for sewage treatment |
| CN116022987A (en) * | 2023-03-29 | 2023-04-28 | 河北环境工程学院 | Full-automatic sludge high-efficiency treatment device |
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| CN108585432B (en) | 2024-06-04 |
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